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Technical Data Sheet
21589 ✓ Verified by PartsTable
Trust · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

Smart wall charger with USB-C and USB-A port, to charge all devices at highest possible speed<br><br>- Smart wall charger with USB-C and USB-A port<br>- Compatible with tablets and phones from Apple, Samsung & other brands<br>- Fast charging of devices with USB-C connector (3A/15W max)<br>- Auto-detects and charges all other devices at highest possible speed (2.4A/12W max)<br>- Ideal for travel: compact design and works on 100-240V 50/60Hz<br>- For maximum power ratings please refer to below specification table This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-903-2816, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
21589
NSN: 5340-00-903-2816
FSC: 5340
CAGE: 07148 — UNITED TECHNOLOGIES CORP HAMILTON SUNDSTRAND CORP (USA)
SPECIFICATIONS
length0.480 INCHES MINIMUM AND 0.490 INCHES MAXIMUM IN
diameter0.312 INCHES NOMINAL IN
style_designatorLEFT INTERNAL AND RIGHT INTERNAL THREADS
cross-sectional_shapeROUND
NSN5340-00-903-2816
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 21589 MFR: Trust ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
STYLE DESIGNATOR: LEFT INTERNAL AND RIGHT INTERNAL THREADS
CROSS-SECTIONAL SHAPE: ROUND
DIAMETER: 0.312 INCHES NOMINAL IN
LENGTH: 0.480 INCHES MINIMUM AND 0.490 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORLEFT INTERNAL AND RIGHT INTERNAL THREADS
CROSS-SECTIONAL SHAPEROUND
DIAMETER0.312 INCHES NOMINAL IN
LENGTH0.480 INCHES MINIMUM AND 0.490 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
2908Interchangeable
interchangeable cross-reference
interchangeable
21589Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21589?
21589 is a CAP,BRUSH manufactured by Trust.
What parts can replace 21589?
There are 2 known substitutes for 21589: 2908, 21589. Substitute compatibility should be verified for your specific system.
What is the NSN for 21589?
21589 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-903-2816. This indicates validated use in U.S. government and defense supply chains.
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